Lunch And Learn: UFW Basics - The Uncomplicated Firewall

Master ufw as a simple wrapper around iptables and net filter, and learn firewall concepts, terminology, and host-based architectures to protect endpoints.

Set up and enable ufw on ubuntu, install if needed, and manage status, help, and enable or disable to control firewall startup.

Learn ufw basics from the command line by accessing help, enabling the firewall, checking status, and adding a port 80 rule, plus reload and reset basics.

Learn how to manage UFW status, enable the firewall, and review default and custom rules, including numbered rules and a port 80 inbound example, with reload and reset differences.

Demonstrate practical UFW management by checking status, enabling the firewall, logging, and adding a port 80 rule, plus understanding reload versus reset effects.

Apply UFW basics by configuring default policies, writing allow and deny rules for inbound and outbound traffic, and managing port 53 with TCP and UDP on IPv4 and IPv6.

Configure ufw firewall rules on linux, creating IPv4 and IPv6 entries and enabling port 53 for tcp and udp, then deny telnet on port 23 and delete specific rules.

Learn to look up port numbers and protocols using the Internet Assigned Numbers Authority site, and use its broad search to find SMTP on 25 and HTTPS on 443.

Learn to set up, monitor, reset, and reload UFW, write basic rules for services and imports that restrict access by IP addresses, and manage access rules.